Loading…
Loading…
GCSE Biology · key term
Describes a cancerous tumour whose cells invade neighbouring tissues and may spread to other parts of the body.
Used by AQA
Specification 4.2.2.7 · Paper 1
Revise: CancerA benign tumour can still cause problems if it grows large enough to press on an organ or other body structure. However, its contained growth distinguishes it from a malignant tumour.
When comparing tumours, state both location and behaviour: benign tumours remain contained and do not invade, whereas malignant tumours invade tissues and can spread through the blood.
Do not write that every tumour is cancerous. Malignant tumours are cancerous; benign tumours are not.
If asked how a secondary tumour forms, give the sequence: malignant cells detach, enter the blood, travel elsewhere and divide again.
Create a free account to read GCSE Biology revision notes for your exam board and track your progress.